Envelope



FIG. 1 is a front elevational view of the envelope showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front elevational view thereof, with the tab/string unit partially pulled away for clarity of disclosure, the broken lines shown are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an envelope, as shown and described. 